Attachment for artificial teeth upon bridge work



Oct. 9, 1928.

A. D. MIZZY ATTACHMENT FOR ARTIFICIAL TEETH UPO N BRIDGEWORK Filed.Jfine 14-, 1927 Albert duo! any Patented Oct. 9, 1928.

UNITED; STATES A EN T IC 1 ALBERT n. MIZZY, on NEW YORK, N. Y.

ATTACHMENT FOR ARTIFICIAL TEETH UPON immon wonx;

Application filed June 14, 1927. Serial No. 198,810.

properly aligned regardless of the accuracy of the bridge drilling step.

Other objects and advantages of my invention will be apparent during thecourseof the following description.

In the accompanying drawings which form a part of this description andwherein like characters of reference denote like or corresponding partsthroughout the same,

Figure 1 is a front View of some bridge work from which a tooth ismissing,

Figure 2 is a rear elevation of the replacement tooth,

Figure 3 is an edge view of the same,

Figure 4 is a top plan view thereof,

Figure 5 is a vertical sectional view of the replacement tooth in placeon the bridge work,

Figure 6 is an elevation of my improved T- bar for securing the tooth inplace,

Figure 7 is a similar View showing the head member in section,'and

Figure 8 is a detail view showing the application of the improved T-bar.

In the accompanying drawings, wherein for the purpose of illustration isshown a preferred embodiment of my invention, the numeral 10 designatesthe bridge Work which is secured to the crown teeth 11 and supports theteeth 12. I

The replacement tooth 13 is provided with a longitudinal groove 14,extending part way down the tooth, and a metal backing plate 15 isriveted to the tooth and is providedwith a slot 16 which correspondswith the slot 14 but is narrower.

In applying the tooth an opening is drilled in the bridge work andtapped to suit the anchor shown in Figures 6 to 8 and comprising a shank17 which is provided with screw the opening in the bridge work, asillustrated 7 threads adapted toengage the tapped opening in the bridgework, and a head-18 which isprovided with an opening 19 to-receive thereduced end 20 of the shank. A pin 21 extends through the head and shankand pivotally secures the head to the shank, the opening 19 being largeenough to allow pivotal movement of the head with respect to the shank.

' In operation the shank is screwed into the opening in the bridge work,until the head has assumed a vertical position in slightly spacedrelation to the bridge work, and the tooth 13 is slipped over the head,the slot receiving the head, and cemented in place.

'18, 1909, the head and shank are rigidly secured together andconsequently the greatest 7 care must be taken'to drill the opening inthe bridge work for the shank. The slightest deviation of this openingwill affect the seating of the tooth, and will often prevent the toothfrom being slipped into-position.

By providing the T-bar with a'pivot joint, the head" may always bearranged in the proper position regardless of the direction of in FigureI While I have shown and described the preferred embodiment of myinvention, it is to be understood that various changes in the size,shape and arrangement of parts may be intermediate its ends to the shankto move 10o about the pivot in the plane of the shank and the head andadapted to be received in the recessed groove in the tooth.

2. The combination With an artificial tooth 5 having a longitudinalgroove on its inner its ends and adapted to pivotally receive the end ofthe shank, the head and shank being arranged in the same plane at alltimes, Whereby the head is capable of assuming its proper positionregardless of the direction of the shank.

In testimony whereof I affix my signature.

ALBERT D. MIZZY..

